Abstract: Aspects of the disclosure provide techniques for a secure distributed dynamic frequency selection (DFS) scheme. In an aspect, the disclosure describes a method, device, and computer-readable medium in which DFS filtering is configured in each of a host software executable on a host processor and a firmware executable on a target processor on a single wireless communications device. The DFS filtering is initially (or by default) performed by the firmware. The firmware may then monitor a target load metric of the target processor to identify conditions that may indicate that the target processor is overloaded. Based on the monitoring, the firmware may determine whether to move the DFS filtering from being performed by the firmware to being performed by the host software (if deemed secure). The firmware may also move the DFS filtering back to being performed by the firmware if conditions at the target processor improve.

Abstract: Systems, methods, and apparatuses for wireless transmission during Channel Availability Check on mixed DFS channels are provided. One aspect of this disclosure provides a method of wireless communication. The method includes identifying, at a first device, a plurality of subchannels of the transmission channel for transmission, the identified plurality of subchannels including one or more restricted subchannels and including one or more unrestricted subchannels. The method further includes determining, at the first device, a first bandwidth configuration for the identified restricted subchannels and a second bandwidth configuration for the identified unrestricted subchannels. The method further includes scanning, at the first device, for one or more restricted signals over one or more of the identified restricted subchannels.